U3761MB-T ATMEL [ATMEL Corporation], U3761MB-T Datasheet - Page 19

• Manufacturer Part Number: U3761MB-T
• Description: Universal Telephone IC - All Functions Integrated
• Manufacturer: ATMEL [ATMEL Corporation]

Figure 13. Symbolic Timing Diagram: HFI, HFO Function
Figure 14. Symbolic Timing Diagram: On Hook Debounce Time
4744A–CORD–09/03
HKS
XT
HFO
HFI
Off hook
Figure 15. HKS Threshold Voltage
60
40
30
50
45
35
55
2.0
2.5
165 ms
3.0
switch off
On hook
V
switch on
DD
3.5
(V)
4.0
4.5
U3761MB-T
5.0
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